| 免蒸压免烧结粉煤灰多孔砖砌体力学性能试验研究 |
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| 引用本文： | 李忠献,周晓洁,夏多田,许小波,刘泽锋.免蒸压免烧结粉煤灰多孔砖砌体力学性能试验研究[J].地震工程与工程振动,2012,32(3):92-98. |
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| 作者姓名： | 李忠献 周晓洁 夏多田 许小波 刘泽锋 |
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| 作者单位： | 1. 天津大学建筑工程学院,天津300072;滨海土木工程结构与安全教育部重点实验室,天津300072
2. 天津大学建筑工程学院,天津,300072 |
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| 基金项目： | 国家科技支撑计划重点项目 |
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| 摘 要： | 免蒸压免烧结粉煤灰多孔砖是一种新型承重墙体材料,为使其在地震区村镇建筑中得到推广应用,进行了多孔砖砌体抗压强度和抗剪强度试验,分析了砌体裂缝开展及破坏过程。试验结果表明:免蒸压免烧结粉煤灰多孔砖砌体的受压、受剪破坏过程及特征与普通黏土砖砌体类似,但具有更大的脆性;抗压、抗剪强度均小于普通黏土砖砌体;采用6次多项式的受压本构关系数学模型,反映了免蒸压免烧结粉煤灰多孔砖砌体受压应力-应变全过程,计算值与实测数据比较接近。
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| 关 键 词： | 免蒸压免烧结粉煤灰多孔砖 砌体 抗压强度 抗剪强度 本构关系 应力-应变曲线 |
Experimental study on mechanical properties of non-autoclaved and non-sintered fly-ash Perforated brick masonry |
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| LI Zhongxian
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ZHOU Xiaojie
,
XIA Duotian
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XU Xiaobo
,
LIU Zefeng.Experimental study on mechanical properties of non-autoclaved and non-sintered fly-ash Perforated brick masonry[J].Earthquake Engineering and Engineering Vibration,2012,32(3):92-98. |
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| Authors: | LI Zhongxian ZHOU Xiaojie XIA Duotian XU Xiaobo LIU Zefeng |
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| Institution: | 1,2(1.School of Civil Engineering,Tianjin University,Tianjin 300072,China; 2.Key Laboratory of Coast Civil Structure Safety,Ministry of Education,Tianjin 300072,China) |
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| Abstract: | Non-autoclaved and non-sintered fly-ash perforated brick is a kind of new material for load-bearing walls.In order to promote the application of this new material in village and town buildings of seismic area,compression and shear strength of non-autoclaved and non-sintered fly-ash perforated brick masonry was tested and crack and failure progress was analyzed.The test results show that the failure processes and characteristics of the non-autoclaved and non-sintered fly-ash perforated brick masonry in compression and in shear are similar to that of the common brick masonry,however the non-autoclaved and non-sintered fly-ash perforated brick masonry tends to fail in brittle manner.The compression and shear strength are all less than that of the common brick masonry.A mathematic model of 6-degree polynomial was used to express the compressive constitutive relationship and the whole process of non-autoclaved and non-sintered fly-ash perforated brick masonry in compression was described.The curve was close to the measured data. |
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| Keywords: | non-autoclaved and non-sintered fly-ash perforated brick masonry compression strength shear strength constitutive relationship stress-strain curve |
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